# int()  float()  str()
i = 123
f = 123.3
s = "123"
b = False  # True--1  False--0
# i = int(i)
# f = int(f)  # 取整
# s = int(s)
# b = int(b)
# int()转换int、float、bool、str(数字类型的)
# i = float(i)
# f = float(f)
# s = float(s)
# b = float(b)
# float()转换int、float、bool、str(数字类型的)
i = str(i)
f = str(f)
s = str(s)
b = str(b)
# str()就是加双引号
print(i)
print(f)
print(s)
print(b)
print(type(i))
print(type(f))
print(type(s))
print(type(b))
# 相互转换但是不能转换数字类型的
# 列表可以转换集合，字典但是不能转换数字
